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经营范围
发明名称
Bandbreiteregler
摘要
申请公布号
DE704874(C)
申请公布日期
1941.04.09
申请号
DE1939R105326D
申请日期
1939.06.01
申请人
RADIO CORPORATION OF AMERICA
发明人
HARVEY ROBERT LEE
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
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